Start by exploring existing virtual worlds and using 'sandboxes'.
Establish a presence by renting a region in an existing virtual world.
Establish a team with strong ICT support before considering hosting own virtual world.
Consult educator communities in virtual worlds when looking for a hosting solution that meets needs for privacy, reliability, price and performance...
Consider implementing a range of complementary services at your institution including using open source software. For example existing virtual worlds, standalone installations, USB memory stick installations, local network, hosted OpenSim providers.
Research - Hardware and Hosting
There are a number of ways to implement virtual worlds for learners to access.
Regions for Rent
External Hosting Options
Inhouse Hosting Options
Further reading on hosting
Recommendations for possible Guidelines/Standards